26 lines
731 B
LLVM
26 lines
731 B
LLVM
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s
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; This test verifies that VSX swap optimization works when an implicit
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; subregister is present (in this case, in the XXPERMDI associated with
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; the store).
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define void @bar() {
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entry:
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%x = alloca <2 x i64>, align 16
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call void @llvm.lifetime.start.p0(i64 16, ptr %x)
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store <2 x i64> <i64 0, i64 1>, ptr %x, align 16
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call void @foo(ptr %x)
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call void @llvm.lifetime.end.p0(i64 16, ptr %x)
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ret void
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}
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; CHECK-LABEL: @bar
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; CHECK: lxvd2x
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; CHECK: stxvd2x
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; CHECK-NOT: xxswapd
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declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
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declare void @foo(ptr)
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declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
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